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• Covariance and Contravariance type inference in C# 4.0

  - by devoured elysium

  When we define our interfaces in C# 4.0, we are allowed to mark each of the generic parameters as in or out. If we try to set a generic parameter as out and that'd lead to a problem, the compiler raises an error, not allowing us to do that. Question: If the compiler has ways of inferring what are valid uses for both covariance (out) and…

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• Text Parsing - My Parser Skipping commands

  - by The.Anti.9

  I'm trying to parse text-formatting. I want to mark inline code, much like SO does, with backticks (`). The rule is supposed to be that if you want to use a backtick inside of an inline code element, You should use double backticks around the inline code. like this: `` mark inline code with backticks ( ` ) `` My parser seems to skip…

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• How to make Resig's micro-templates XHTML compliant?

  - by mshelv

  Hello, I have been experimenting with John Resig's micro-template, which works great. However, the mark-up will not pass the XHTML 1.0 Transitional validation test. (Among other things, id attributes yield errors.) Replacing tags identifiers <, with [[,]], passes validation. Thus, I created a js script which at load time (jQuery…

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• Covariance and Contravariance inference in C# 4.0

  - by devoured elysium

  When we define our interfaces in C# 4.0, we are allowed to mark each of the generic parameters as in or out. If we try to set a generic parameter as out and that'd lead to a problem, the compiler raises an error, not allowing us to do that. Question: If the compiler has ways of inferring what are valid uses for both covariance (out)…

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• permutations gone wrong

  - by vbNewbie

  I have written code to implement an algorithm I found on string permutations. What I have is an arraylist of words ( up to 200) and I need to permutate the list in levels of 5. Basically group the string words in fives and permutated them. What I have takes the first 5 words generates the permutations and ignores the rest of the…

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• Passing Object to Service in WCF

  - by hgulyan

  Hi, I have my custom class Customer with its properties. I added DataContract mark above the class and DataMember to properties and it was working fine, but I'm calling a service class's function, passing customer instance as parameter and some of my properties get 0 values. While debugging I can see my properties values and…

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• How do I efficiently write a "toggle database value" function in AJAX?

  - by AmbroseChapel

  Say I have a website which shows the user ten images and asks them to categorise each image by clicking on buttons. A button for "funny", a button for "scary", a button for "pretty" and so on. These buttons aren't exclusive. A picture can be both funny and scary. The user clicks the "funny" button. An AJAX request is sent off…

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• Database design and foreign keys: Where should they be added in related tables?

  - by Carvell Fenton

  I have a relatively simple subset of tables in my database for tracking something called sessions. These are academic sessions (think offerings of a particular program). The tables to represent a sessions information are: sessions session_terms session_subjects session_mark_item_info session_marks All of…

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• Multiple errors while adding searching to app

  - by Thijs

  Hi, I'm fairly new at iOS programming, but I managed to make a (in my opinion quite nice) app for the app store. The main function for my next update will be a search option for the app. I followed a tutorial I found on the internet and adapted it to fit my app. I got back quite some errors, most of which I managed to fix.…

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• Convert InputStream to String with encoding given in stream data

  - by Quentin

  Hi, My input is a InputStream which contains an XML document. Encoding used in XML is unknown and it is defined in the first line of XML document. From this InputStream, I want to have all document in a String. To do this, I use a BufferedInputStream to mark the beginning of the file and start reading first line. I read…

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• Hide / show div toggle

  - by aa1

  I have the following mark up with a basic and advanced search divs. <div class="form"> <form> <input type="text" name="first_name"> <input type="text" name="last_name"> <div id="Basic" class="slide"> <input type="text" name="location"> …

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• Problem with a NSString that equals to (null)

  - by Guy Dor

  Hi, I have an UIViewController named MainViewController I have another UIViewController named LeftSharingViewController; I would like to get and use the NSString from MainViewController in my LeftSharingViewController I have a problem, I always get (null) instead of the NSString wanted value. Here's my code and how…

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• wmd editor, why does it keep showing html instead of just going straight to markup

  - by Ke

  hi, im wondering how wmd is supposed to work, when i type in the textarea the text doesnt have html, but once the text is stored in db it turns to html. wmd also shows all this html when reloading the content? is it supposed to work like this? Do I have to sanitize the text before its put into the db? if so how? I…

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• Can't add to NSMutableArray from SecondaryView

  - by Antonio

  Hi guys, I've searched and read and still haven't found a concrete answer. Brief: I have an application where I declare an NSMutableArray in my AppDelegate to synthesize when the application loads. (code below). I have a SecondaryViewController call this function, and I have it output a string to let me know what…

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• iOS: click counter for row in tableview

  - by roger.arliner21

  I am developing and tableView in which in each row I have to display the click counter and row number.Each cell must have an initial click counter value of 0 when application is initialized. Then increment the click counter value within a cell whenever a user clicks on the cell. I have take 26 fixed rows. I have…

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• SQL indexes for "not equal" searches

  - by bortzmeyer

  The SQL index allows to find quickly a string which matches my query. Now, I have to search in a big table the strings which do not match. Of course, the normal index does not help and I have to do a slow sequential scan: essais=> \d phone_idx Index "public.phone_idx" Column | Type --------+------ phone |…

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• Sending a JSON object to an ASP.NET web service using JQUERY ajax function

  - by uzay95

  I want to create object on the client side of aspx page. And i want to add functions to these javascript classes to make easier the life. Actually i can get and use the objects (derived from the server side classes) which returns from the services. When i wanted to send objects from the client by jquery ajax…

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• PHP Form - Edit & Delete via Text File Db

  - by Jax

  hi, I pieced together the script below from various tutorials, examples, etc... Right now the script currently: Saves Id, Name, Url with a "|" delimiter to a text file Db like: 1|John|http://www.john.com| 2|Mark|http://www.mark.com| 3|Fred|http://www.fred.com| But I'm having a hard time trying to make…

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• How to define 2-bit numbers in C, if possible?

  - by Eddy

  For my university process I'm simulating a process called random sequential adsorption. One of the things I have to do involves randomly depositing squares (which cannot overlap) onto a lattice until there is no more room left, repeating the process several times in order to find the average 'jamming'…

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• Move SELECT to SQL Server side

  - by noober

  Hello all, I have an SQLCLR trigger. It contains a large and messy SELECT inside, with parts like: (CASE WHEN EXISTS(SELECT * FROM INSERTED I WHERE I.ID = R.ID) THEN '1' ELSE '0' END) AS IsUpdated -- Is selected row just added? as well as JOINs etc. I like to have the result as a single table with…

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• What are your Programming Falacies/Myths?

  - by pms1969

  I recently started a new job and as is typical of all jobs, if you've left, you get blamed for everything. Not long after I started there was a change required for an app (web based) that we maintain, and it was quickly pointed out that the actual code for this site had been lost a long time ago, and…

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• Symfony 1.3: Any opinion about this code? Coud be shorter or better?

  - by user248959

  Hi, I need your opinion about this code below. I have a list of messages: each message has a link that change the state of the message (read - non read). In the partial "_message" i have this: <div class="switching_link" id="switching_link_<?php echo $message ?>"> echo…

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• Appending a TR to Table Not Formatting Correctly

  - by TimNguyenBSM

  My PHP script is sending back an array: $currentStatus = ( isset( $status ) ) ? "1" : "0"; $html = "<tr><td>" . $email . "</td><td>" . ( ( $status->type == 0 ) ? "View Only" : ( ( $status->type == 1 ) ? "View & Mark" : "View, Mark & Edit" ) ) .…

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• How to get a UIAlertView's result??

  - by cocos2dbeginner

  Hi, I implemented the gamekit. All works fine now. But if the user presses on send the data will instantly send to the other iphone/ipod/ipad and it will instantly written. So now i wanted to implemenr a confirm screen for the receiver. In my receiveData method (from the gamekit)…

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• Undeclared - 'first use in function'

  - by Ragunath Jawahar

  I'm new to Objective-C, though I have a very good hand in Android. I'm trying to make a call to a method but it gives me 'first use in function'. I know I'm making a silly mistake but experts could figure it out easily. RootViewController.h #import <UIKit/UIKit.h> #import…

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